:root {
  --paper: #fafaf6;
  --ink: #1c1c1e;
  --muted: #5f5f66;
  --accent: #3366f2;
  --line: #e6e6df;
  --card: #ffffff;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #121216;
    --ink: #ececf0;
    --muted: #a0a0aa;
    --accent: #7d9bff;
    --line: #2a2a31;
    --card: #1a1a20;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
}
.wrap { max-width: 680px; margin: 0 auto; padding: 40px 22px 72px; }
header.site { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
.mark {
  width: 40px; height: 40px; border-radius: 10px; flex: none;
  background: linear-gradient(135deg, var(--accent), #6f57ff);
  display: grid; place-items: center; color: #fff; font-size: 22px;
}
header.site h1 { font-size: 1.25rem; margin: 0; letter-spacing: -0.01em; }
h1.title { font-size: 1.9rem; letter-spacing: -0.02em; margin: 28px 0 4px; }
.updated { color: var(--muted); font-size: 0.9rem; margin: 0 0 28px; }
h2 { font-size: 1.15rem; margin: 32px 0 8px; letter-spacing: -0.01em; }
p, li { color: var(--ink); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.lede { font-size: 1.1rem; color: var(--muted); }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  padding: 18px 20px; margin: 18px 0;
}
ul { padding-left: 22px; }
li { margin: 6px 0; }
nav.links { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 26px; }
nav.links a {
  border: 1px solid var(--line); border-radius: 999px; padding: 8px 16px;
  color: var(--ink); background: var(--card);
}
footer { margin-top: 48px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.88rem; }
code { background: var(--card); border: 1px solid var(--line); border-radius: 6px; padding: 1px 6px; font-size: 0.9em; }